To put in tape-in hair extensions, you will need:

• The tape-in extensions
• A rat-tail comb
• A hair straightener or flat iron
• A hair dryer
• Hair clips or pins
• Heat-resistant clips (optional)
• Alcohol wipes or remover solution
• New double-sided tape

Here is the process for applying tape-in hair extensions:

• Wash and dry your hair. It is important to start with clean, dry hair for the best results.
• Section off the top half of your hair. Use hair clips or pins to keep the top half of your hair out of the way.
• Divide the bottom half of your hair into small sections. Use a rat-tail comb to create thin, even sections of hair.
• Cut the tape-in extensions to the desired length. You will need one weft for each section of hair.
• Heat the hair straightener or flat iron. You will need to heat the extensions to activate the double-sided tape.
• Peel off the backing from the tape-in extension wefts. Be sure to remove both sides of the backing.
• Place the tape-in extension weft against your natural hair. Position the weft so that it is centered along the section of hair, with the tape facing your scalp.
• Use the hair straightener or flat iron to heat the tape. Run the flat iron over the weft, being careful not to apply too much heat or pressure. This will help to melt the tape and secure the extension in place.
• Repeat the process for each section of hair. Work from the nape of the neck to the crown of the head, applying the extensions in a straight line along the hairline.
• Style and dry your hair. Once all of the extensions are in place, style your hair as desired and use a hair dryer to set the style.

It is important to follow the manufacturer’s instructions carefully when applying tape-in hair extensions, and to visit a professional stylist if you are not confident in your ability to do it yourself. Applying tape-in extensions improperly can result in damage to your natural hair.